**21. Further Assurances; Financial Information.** 

 a. Lessee will, at Lessee’s expense, promptly and duly execute and deliver to Lessor such further documents and assurances and take such further
actions as Lessor may from time to time request for the confirmation of this Lease and in order to more effectively establish and protect the rights, interest and remedies created or intended to be created in favor of Lessor hereunder, including,
without limitation, the execution and filing of Uniform Commercial Code financing statements in the jurisdictions in which Lessee has its corporate headquarters and/or its principal place of business and in which the Aircraft is principally based
from time to time. To the extent permitted by applicable law, Lessee hereby authorizes Lessor to file any such financing statements without the signature of Lessee. Lessee will also provide such information as Lessor may reasonably request from
Lessee to enable Lessor to fulfill all of its tax filing obligations. 

 b. Lessee will furnish to Lessor not later than one hundred twenty
(120) days after the end of each fiscal year of Lessee, consolidated balance sheet of Lessee as of the end of such fiscal year, and consolidated statements of income and changes in financial position of Lessee for such fiscal year, all in
reasonable detail, prepared in accordance with generally accepted accounting principles and reviewed by a certified public accountant. 

 **22. Notices.** Notices sent by acceptable courier services shall be deemed received when delivered and evidenced by proper receipt. All other notices, demands and other communications hereunder shall be in writing, and shall be
deemed to have been given or made when sent by telefacsimile or ten (10) days after deposited in the United States mail, first class postage prepaid, addressed as follows or to such other address as any of the following persons may from time to
time designate in writing to the other persons listed below: